Secondhand Vape Exposure: Effects, Who's at Risk, and More Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Secondhand smoke and vape can trigger your child's asthma attacks. Smoking and vaping are unhealthy for everyone but especially harmful for people with asthma. Whether at home, in the car, or Secondhand smoke and secondhand aerosol Secondhand Vape Plumes Could Form Lung damaging Radicals